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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2020-12-21 15:57:33 +0300
committerSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2021-02-08 22:54:58 +0300
commit006050a6bd5ee4febf35478bfafb0764a609890a (patch)
tree1bde3fb5361205cf7bd52963883e2ec695e6c613 /tools
parent60accc011af0ff869875b1ded81cbd0948267f05 (diff)
downloadlinux-006050a6bd5ee4febf35478bfafb0764a609890a.tar.xz
tools/power/x86/intel-speed-select: Add new command turbo-mode
Add a new command "turbo-mode", which allows to enable/disable turbo mode globally. This uses base-frequency as the max frequency when turbo-mode is disabled. This allows soft disable turbo mode without depending on kernel or BIOS. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/power/x86/intel-speed-select/isst-config.c62
1 files changed, 61 insertions, 1 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 09cb3a6672f3..3d6bfe4f7caa 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -2304,6 +2304,55 @@ static void get_clos_assoc(int arg)
isst_ctdp_display_information_end(outf);
}
+static void set_turbo_mode_for_cpu(int cpu, int status)
+{
+ int base_freq;
+
+ if (status) {
+ base_freq = get_cpufreq_base_freq(cpu);
+ set_cpufreq_scaling_min_max(cpu, 1, base_freq);
+ } else {
+ set_scaling_max_to_cpuinfo_max(cpu);
+ }
+
+ if (status) {
+ isst_display_result(cpu, outf, "turbo-mode", "enable", 0);
+ } else {
+ isst_display_result(cpu, outf, "turbo-mode", "disable", 0);
+ }
+}
+
+static void set_turbo_mode(int arg)
+{
+ int i, enable = arg;
+
+ if (cmd_help) {
+ if (enable)
+ fprintf(stderr, "Set turbo mode enable\n");
+ else
+ fprintf(stderr, "Set turbo mode disable\n");
+ exit(0);
+ }
+
+ isst_ctdp_display_information_start(outf);
+
+ for (i = 0; i < topo_max_cpus; ++i) {
+ int online;
+
+ if (i)
+ online = parse_int_file(
+ 1, "/sys/devices/system/cpu/cpu%d/online", i);
+ else
+ online =
+ 1; /* online entry for CPU 0 needs some special configs */
+
+ if (online)
+ set_turbo_mode_for_cpu(i, enable);
+
+ }
+ isst_ctdp_display_information_end(outf);
+}
+
static struct process_cmd_struct clx_n_cmds[] = {
{ "perf-profile", "info", dump_isst_config, 0 },
{ "base-freq", "info", dump_pbf_config, 0 },
@@ -2334,6 +2383,8 @@ static struct process_cmd_struct isst_cmds[] = {
{ "core-power", "get-config", dump_clos_config, 0 },
{ "core-power", "assoc", set_clos_assoc, 0 },
{ "core-power", "get-assoc", get_clos_assoc, 0 },
+ { "turbo-mode", "enable", set_turbo_mode, 0 },
+ { "turbo-mode", "disable", set_turbo_mode, 1 },
{ NULL, NULL, NULL }
};
@@ -2549,6 +2600,14 @@ static void fact_help(void)
printf("\tcommand : disable\n");
}
+static void turbo_mode_help(void)
+{
+ printf("turbo-mode:\tEnables users to enable/disable turbo mode by adjusting frequency settings\n");
+ printf("\tcommand : enable\n");
+ printf("\tcommand : disable\n");
+}
+
+
static void core_power_help(void)
{
printf("core-power:\tInterface that allows user to define per core/tile\n\
@@ -2573,6 +2632,7 @@ static struct process_cmd_help_struct isst_help_cmds[] = {
{ "base-freq", pbf_help },
{ "turbo-freq", fact_help },
{ "core-power", core_power_help },
+ { "turbo-mode", turbo_mode_help },
{ NULL, NULL }
};
@@ -2636,7 +2696,7 @@ static void usage(void)
if (is_clx_n_platform())
printf("\nFEATURE : [perf-profile|base-freq]\n");
else
- printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power]\n");
+ printf("\nFEATURE : [perf-profile|base-freq|turbo-freq|core-power|turbo-mode]\n");
printf("\nFor help on each feature, use -h|--help\n");
printf("\tFor example: intel-speed-select perf-profile -h\n");